| Specification of STM32L021D4P7 | |
|---|---|
| Status | Active |
| Series | STM32L0 |
| Package | Tube |
| Supplier | STMicroelectronics |
| Digi-Key Programmable | Not Verified |
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit Single-Core |
| Speed | 32MHz |
| Connectivity | IC, IrDA, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 11 |
| Program Memory Size | 16KB (16K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 2K x 8 |
| Voltage – Supply (Vcc/Vdd) | 1.65V ~ 3.6V |
| Data Converters | A/D 4x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40C ~ 105C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 14-TSSOP (0.173″, 4.40mm Width) |
| Supplier Device Package | 14-TSSOP |
Applications
The STM32L021D4P7 microcontroller is well-suited for applications requiring low power consumption and high performance in embedded systems. Here are some specific use cases:
- Smart Home Devices: Ideal for controlling smart thermostats and lighting systems due to its energy-efficient design.
- Wearable Technology: Suitable for fitness trackers and smartwatches where battery life is critical.
- Industrial Automation: Used in small-scale automation projects like sensors and actuators that need reliable operation under varying conditions.
- IoT Devices: Perfect for IoT nodes that require long battery life and can operate in harsh environments.
- Medical Devices: Can be used in portable medical devices such as blood glucose monitors, ensuring precision and reliability.
Operating Temperature: -40¡ãC to +85¡ãC
Key Advantages
1. **Low Power Consumption:** The STM32L021D4P7 operates at very low voltages and consumes minimal power, making it ideal for battery-powered applications.
2. **Flexible Memory Configuration:** Supports various memory configurations allowing for customization according to application needs.
3. **Power Efficiency Data:** It offers excellent power efficiency with typical active current of 6.9 mA and typical sleep current of 0.1 ¦ÌA.
4. **Certification Standards:** Meets automotive and industrial certification standards, enhancing its suitability for safety-critical applications.
FAQ
Q1: How does the STM32L021D4P7 handle low-power modes?
A1: The STM32L021D4P7 supports multiple low-power modes including Stop mode, Standby mode, and Deep Sleep mode, which significantly reduce power consumption without losing RAM contents.
Q2: Is the STM32L021D4P7 compatible with other STM32 series microcontrollers?
A2: Yes, the STM32L021D4P7 is fully compatible with other STM32 series microcontrollers through standard peripherals and protocols, facilitating easy integration into existing designs.
Q3: What development tools should I use for the STM32L021D4P7?
A3: For development, you can use Keil MDK-ARM, IAR Embedded Workbench, or GCC ARM Embedded compiler, depending on your preference and project requirements.
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